Razor



April 24, 1956 2,742,695

M. c. THOM RAZOR Filed Nov 6 952 M925 6. firm/P50 INVENTOR. I

1 v 46 Z By 3/ ewe-41 United States Patent F 2,742,695 ice Patented Apr. 24, 1956 "2.742395 RAZOR V I Marc us -CYI hompsrm, Pasadena, Calif. Application November 6-, 1952-, Serial No; 319,105

Claims. at. 30-64) The pre'se'nt invention relates to razors in general and particularly to -a razor provided with improved bladeloading means. More specifically the invention comprisesfa'n ir'nproved razor from which used blades are ejected into a blade container and new blades are positioned in the razor from the blade container by the cooperative interaction of the two elements.

The safety razor has largely displaced the straight edge a 'a means of removing the modern 'm'a'ns beard. The inherent advant ge from the standpoint of safety, and the advantage of having a sharp edge at all "times makes 2 These and other more specific objects will appear upon reading the following specification and claims and upon considering in connection therewith the attached drawings to which they relate.

Referring now to the drawings in which a preferred embodiment of the present invention is illustrated:

Figure 1 is a view in perspective of the. blade-carry ing end of a razor constructed in accordance with the present invention, a blade being shown in place therein, and certain parts being broken away;

Figure 2 is a partial longitudinal section through the razor illustrated in Figure l and illustrates its method 5 5 of Figu're.4;' and the moderirsafe'ty r'azor in the opinion of many a necess'ity, The safety razor normally comprises a handle to which is detachably co'nn'e'cteda head, including a -cap and a'bed or guard betweenflvhich the cutting blade is clamped. Dull blades are replaced by detachin the handle from the headhhcl .theh separating the cap and the guard. A new blade maythen be positioned, the head r eceiinecte d to the handle, and the laz'tjr is agaihie'ad 7 for use. The necessity'fo'r this assembly/a d disassembly operation can be viewed as "an inherent di advantage. Additionallythere is the danger that the .lihger's' will acdide'ntafllybe cut by edges or the blades during the hahdlihg. v e p I I In a newer type of r'az'orthe bladei's seated injthe head and is displaced by the iiise'rt ioh from the side of a new blade from a cartrid e in which a plurality of blad s are ositioned. This corl'struction has "the inherent eavahtage "that i't is unnecessary to di assemble the razor proper-in or'dettc displace the old hinge and to replace it. "It has the disadvantage, however, that the displaced .b'lade isuhp'rctected an is permitted to 'fall to the near crint the Basin from which it must be ret ieved.

In the safety razor constriicted in accordance with the present invention the dull blade removed by bringing the razor into c o erative relationship with the bladecontaining cartridge unit at which by asi'rlipleinanip'ulati'on the old blade is tins eaten :rrchi the ia'zci aha positioned in the unit. By a dilfe'i'iit manipulation, which includes bringing the razor into shew cooperative relationship with the cartridge unit, a new blade positioiied fcr in the razor. The entire c' eiaticn 're'quires no skill and has theiiili eteiitadvantage that his not hecessai'yto disas emble the razor in order to replace the dull blade. It is characterized by "the further advantage that the wars and dull blade is displaced into the bladecontaining cartridge so that it is not permitted 'to "fall onto the floor or other surface to constitute a hazard.

The present application is a continuation-in-part of copending application Serial No. 780,460, filed October 17., 1947., now Patent 2,637,900.

'With'an appreciation of the defects of-the razfdi's prfiihg the :priorar-t it is anobjeet of the present invention to provide a new and improved razor;

Still another object of the invention is to p'rcvide a new and improved razor in which the blade is insertable and removable upon contact with a feeding and removal unit.

I Figure 6 is a view in perspective of the razor blade designed for mounting in the razor constructed in aceordance with the present invention.

Referring again to th'e drawings, a razor constructed in accordance with the present invention is indicated generally by "the reference character). The razor 10 is seen to comprise a handle 12 which may be of any desired diameter, length and general contour to which is attachedat one end ahead "13, 'I'hehandle 12 and head 13 maybe made of a suitable rigid material, such as metal or plastic, and as distinguished. from the sem mes type safety razor are not separable for the purpose of removing and replacing dull blades. A transverse slot 14 is formed in head Hand seats the 'eild sectioris' 16 and T17 of thebed 01" guard ah'd cap 19, respectively; which, in the referred term lillu'st'ratedyare rort'ned of a single piece of metal folded upoh itself. I

In a "manner not t cemincn insafety razors inches or guard '18 is provided at its outer edge with a series of aligned teeth 2"0 which are curved geshyacwmarn away from the upper "s'urfa'ce"of the bed tojfun'ctioh as a g'uard'to space the blade properly relative tofthe epidermis. Between its/ends here is struck froni'the bed is an up- Wardly and forwardly "curving leaf s ring Zl adapted to contact the underside of a blade 25 to h ld it against the cap 19. The forward edge of this spring 21 curves downwardly and away from the'capas is illustrated clear Y 1y in Figures 1 and s at 22. ca 19 slopes rciwsit ly and downwardly toward the bed, being formed at its rear with inward-1y eiiten'ding ears '19s which Contact and position the inner edge of 'a seated blade. At it's forward edges cap 19 at 'its'cOrners hascut-out notches 23 into which extend dogs 24 formed integrally u on the bed 18. Theinner faces of 'dogs 24 are forwardly and outwardly inclined in the manner indicated at '26 in Figure 1. a

The razor blad 25 adapted 'to cooperate with razor 10 1's shown in pers ective in'Fi'gu're e and i 's'een to be flat and sharpened along one edge 27. At its ends sub} stantially' midway between its sides cut-flout 'hotches zii are formed in the Blade-and are" adapted to receive the dogs 2 tc hied'iipo bed "18. Bl de as is shown opera, tiv'ely positioned n tliejrazoi' in Figure 1 and dogs 24 are seen "to extend into "the notches '28, the 'il'pper surface (it the blade being pressed again t the 'unde'rside of cap I Qby the resilientforce elicited by leaf'spring 21. I The razor constructed-iii accordance with the present invehtion is desirable ecause tit its simplicity and he- '-cause of the ease with which it may be constructed, the

entire blade-mounting head being formed integrally of one piece suitably shaped and folded upon itself into the configuration shown.

The blade-carrying cartridge with which the razor is adapted to cooperate in the loading and unloading operations is disclosed and claimed in eopending application Serial No. 780,460, filed October 17, 1947, now Patent 2,637,900, to which reference is made for a full disclosure of its construction. For the purposes of the present disclosure it is sufficient to say that the cartridge unit is so constructed and designed that razor 10 is adapted to be fed blades 25 from one of its ends and to discharge the blade into the opposite end upon being brought, in each instance, into cooperative engagement therewith. The unit 11 is seen to include an exrterior case 31 within which is positioned for limited transverse displacement a box-like carriage 46 having side walls 49 and 51, shown in Figures 2 and 3, respectively. Side wall 49, which is the unloading wall, is formed with a plurality of upwardly extending extensions 52 struck from the bottom wall of carriage 46 which make acute angles with the wall 49 itself and serve as blade retainers, as will be described. Wall 55, which is the blade-loading wall is formed with a plurality of strucl-out spring detents 54 at its opposite ends,

one of the detents being shown in Figure 2, and also with a central cam section 56 which also functions as a handle by which the carriage 46 can be moved relative to casing 31. The cartridge unit also includes means to position fresh blades at the blade-loading wall :4 and to remove to storage used blades from the bladeunloading wall 51. Those features, however, form no part of the present invention and are disclosed and claimed in Patent 2,637,900 referred to.

In Figure 2 the operation of dislocating a used blade 25 from the razor 10 is illustrated. The razor head is advanced until the guard teeth contact the outer side of the top of the wall 51 so that the latter may enter between the blade and the bed 18 by which the teeth are carried. The razor head is then forced downwardly so that the teeth 20 slide downwardly along the cam 56 while the cap 19 and the blades move downwardly adjacent the inner side of the wall 51. The cam 56 displaces the bed 18 sufiiciently as to enable the dogs 24 formed thereon to move downwardly and adjacent the exterior of wall 51. Blade 25 is unable to slip relative to the cap 19 by virtue of the presence of the inwardly extending ears 19a and so is forced downwardly along the inner side of wall 51, the detents 54 formed in the latter being cammed outwardly until the blade notches 28 are positioned adjacent thereto at which time they snap inwardly and into those notches. The used blade is then in the position shown in Figure 2 and its upward movement upon the upward displacement of the cap 19 is prevented by the dogs 54. The razor head can, therefore, be displaced by such upward movement, the teeth 20 sliding along the cam surface 56. The used blade 25 is then displaced to storage position in unit 11 by means forming no part of the present inven- 7 tion.

To load a fresh blade into razor 10 the head 13 is advanced into engagement with the opposite side of unit 11 and specifically into engagement with the blade-loading wall 49 which has been loaded with a fresh blade 25 frictionally seated in the carriers 52, again by an operation of unit 11 forming no part of the present invention. The razor-loading operation to be accomplished is substantially the reverse of the unloading operation previously described. The razor is advanced relative to the side wall 49 of the carriage 46 so that the upper edge of the wall moves between the cap 19 and the spring 21 of the bed 18. The cap 19 at its forward curved end moves downwardly on the inner side of the blade 25 while the bed 18 moves downwardly, its dogs 24 moving downwardly in slots suitably provided in the end wall 49 to receive them until finally they reach the notches 28 in the blade 25 at which time they enter therein. It is then possible by an upward force exerted in the razor and through the dogs 24 to withdraw the blade from its position in the carriage 46 at which time it will be positioned between the cap 19 and the bed 18, in the manner illustrated clearly in Figure 1.

In actual use the razor constructed in accordance with the present invention is used in the manner of the usual safety razor. As illustrated, the razor is seen to include a lather-feeding unit 70 including suitable brushes '71. These, however, form no part of the present invention.

While the particular apparatus herein shown and described in detail is fully capable of attaining the objects and providing the advantages hereinbefore stated, it is to be understood that it is merely illustrative of the presently preferred embodiments of the invention and that no limitations are intended to the details of construction or design herein shown other than as defined in the appended claims.

1 claim:

1. A safety razor comprising a handle, a head at one end of said handle, a bed mounted on said head and an overlying cap formed integrally of a folded metal plate, said bed comprising a toothed outer guard, an upwardly deflected leaf spring, and upstanding bladepositioning dogs along its edges; said cap being substantially fiat and sloping toward tangency with said bed in the direction of said teeth and being adapted to cooperate with said spring to position a blade, and stops on said cap to limit the movement of a blade in one direction.

2. The construction recited in claim 1 characterized in that said metal plate is resilient to enable said bed and cap to be separated to enable the operator to insert and to remove a blade.

3. The construction recited in claim 2 characterized in that said blade-positioning dogs on said bed are inclined upon their rearward sides to aid in the positioning and displacement of a blade.

4. A safety razor comprising a handle, a head at one end of said handle, a bed mounted on said head and formed with guard teeth along its outer edge and with upstanding lugs along its opposite sides, said lugs being formed as blade-camming surfaces along their sides spaced from said guard teeth, a blade-clamping leaf spring extending upwardly from said bed and within its dimensional limits, a cap overlying said bed and spring and normally extending sulficiently close to the latter as to be capable for clamping a conventional fiat razor blade therebetween, said cap being formed with spaced depending ears positioned as to abut the edge of a blade clamped between said cap and said spring and to limit the movement of said blade under the camming action of said lugs.

5. The construction recited in claim 4 characterized in that said cap and said bed are sufficiently resilient as to be displaceable toward and from each other to the extent necessary to enable a blade therebetween to be displaced from engagement with the camming surfaces of said lugs.

Thompson May 12, 1953 

